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A spherical ball of lead has a diameter of 4.0cm . What is the mass of the sphere if lead has a density of 11.34g/cm^3? (The volume of a sphere is (4\3) pi r^3 where r is the radius.)
25.00 ml aliquots of thiis solution was titrated with monoprotic strong base NaOH (0.0800 M). The titre volume of NaOH was 40.00ml. Calculate the molecular weight of H2A.
Name three similarities or differences between this hormone and insulin. Name three similarities or differences between this hormone and cortisone
The book wants to know what the ground-state electron configuration should be for Ag+. I understand that if you have a positive ion, that it is losing an electron, so the ground state would reflect Palladium.
Show that Ka Kb = Kw for a weak acid and its conjugate base OR a weak base and its conjugate acid, using the equilibrium expression for each.
Which of the isomers of octane has only two peaks in its 13C NMR? Draw the structure of the alkane. 2. Draw the structure of the C4H9Cl isomer given the following proton NMR data:
What hybridization would you expect for the indicated (bold) atom in each of the following molecules?
An element crystallizes in a face-centered cubic lattice. The edge of the unit cell is 392 pm, and the density of the crystal is 21.45 g/cm3. Calculate the atomic weight of the element (in g/mol)
What each test reveals about an unknown halide ion? Suggest another test which would confirm that identity. 1.Addition of Cl2 and CH2Cl2 to an aqueous solution of an unknown halide ion led to a dark CH2Cl2 layer.
How many kilowatt-hours of energy are necessary to heat the air in the house from 5degree C to 25degree C
* State what the patient can include and avoid in her diet on a regular basis to avoid these symptoms in the future.
1) Draw all aldehyde and ketone isomers of C 6 H 12 O. 2) What is the reaction that occurs with hexanal and propanol (give both the hemiacetal and acetal products)?
How would I build a molecule of C(CH3)3Br ? I am using a software called Webmo and MOPAC. Whenever I build a molecule, it would always end up like this C4H9Br?
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